Shaftless loose-leaf binding ring with flat ridge

Abstract

The shaftless loose-leaf binding ring comprises a first hinge and a second hinge, the first hinge comprises a first ridge part and a plurality of first semi-ring components, the second hinge comprises a second ridge part and a plurality of second semi-ring components, a connecting block is arranged on the first ridge part, a clamping groove is correspondingly formed in the second ridge part, and the first semi-ring components and the second semi-ring components are arranged in the clamping groove. The connecting block is in clearance fit with the clamping groove, rotating connecting pieces are arranged at the two opposite ends of the connecting block, clamping holes are formed in the two opposite inner walls of the clamping groove, and the rotating connecting pieces abut against the interiors of the clamping holes so that the first hinge can be rotationally connected with the second hinge; when the loose-leaf binding ring is in a closed state, the first ridge part, the connecting block, the clamping groove and the second ridge part are located on the same plane, so that the ridge parts of the loose-leaf binding ring are flat. The device is simple in structure, the structure of a rotating shaft is omitted, the assembly difficulty is reduced, and the device can be stably placed on a table top due to the fact that no protruding ridge portion exists.

Description

Technical Field

[0001] The utility model relates to the field of loose-leaf binding rings, in particular to a shaftless loose-leaf binding ring with a flat spine. Background Art

[0002] Loose-leaf binding rings are used to bind the loose pages with holes punched into books, and the bound loose pages can be flipped through. Nowadays, there are many styles of loose-leaf binding rings, and people can choose different binding rings according to specific purposes.

[0003] Most of the loose-leaf binding rings on the market now realize the opening and closing of the binding rings by setting a rotating shaft or a hinged spine. For example, Chinese invention patent publication number CN100564065C discloses a spine type loose-leaf ring, including a slender spine hinge, the spine hinge includes two hinged pillars, which are connected by a connecting strip so that the hinge opens when the hinged pillars are separated and closes when the hinged pillars are merged. Chinese utility model patent CN219583822U discloses a binder, including a rotating shaft, wherein the upper and lower ends of the rotating shaft are rotatably matched in the shaft hole; the above-mentioned prior art has the following shortcomings: 1. The protruding spine hinge makes it impossible for the loose-leaf binding ring to be placed stably on the desktop and affects the appearance; 2. For mass production, the installation of the rotating shaft is difficult to realize automation and the manual installation cost is high; therefore, there is an urgent need for a shaftless loose-leaf binding ring with a flat spine to solve the above problems. Summary of the invention

[0004] In order to solve the following problems in the prior art: the protruding spine hinge makes it impossible for the loose-leaf binding ring to be placed stably on the desktop and affects the appearance; for mass production, the installation of the shaft cannot be automated and the manual installation cost is high;

[0005] The utility model provides a shaftless loose-leaf binding ring with a flat spine, comprising a first hinge and a second hinge, wherein the first hinge comprises a first spine and a plurality of first half-ring components, and the second hinge comprises a second spine and a plurality of second half-ring components, and is characterized in that a connecting block is provided on the first spine, a clamping groove is correspondingly provided on the second spine, the connecting block and the clamping groove are clearance-matched, a rotating connecting piece is provided at opposite ends of the connecting block, a clamping hole is provided on opposite inner walls of the clamping groove, and the rotating connecting piece abuts against the clamping hole to realize the rotating connection between the first hinge and the second hinge;

[0006] Wherein, when the loose-leaf binding ring is kept in a closed state, the first spine, the connecting block, the clamping groove and the second spine are located on the same plane, so as to achieve the flatness of the spine of the loose-leaf binding ring.

[0007] Preferably, at least one connecting block is provided on the first ridge, and the number of the engaging grooves matches the number of the connecting blocks.

[0008] Preferably, the rotating connecting member is hemispherical, the clamping hole is a hemispherical hole matching the shape of the hemispherical rotating connecting member, and the hemispherical rotating connecting member is interference fit with the hemispherical hole.

[0009] Preferably, the connecting block is a hollow structure to increase the flexibility of the loose-leaf binding ring.

[0010] Preferably, the ends of the first half ring component and the second half ring component are provided with wedge-shaped teeth that cooperate with each other.

[0011] Preferably, the ends of a certain group of the first half ring component and the second half ring component of the loose-leaf binding ring are provided with mutually matching undercut locking teeth.

[0012] The beneficial effects of the utility model are as follows: compared with the prior art, the first hinge of the utility model is fixedly provided with a connecting block with a rotating connecting piece, and the second hinge is provided with a clamping groove with a clamping hole. The connecting block and the clamping groove cooperate with each other through the rotating connecting piece and the clamping hole to realize the rotating connection between the first hinge and the second hinge, thereby eliminating the structure of the rotating shaft, reducing the difficulty of assembling the loose-leaf binding ring, thereby reducing the production cost, and facilitating the mass production of the product. In addition, when the loose-leaf binding ring is kept in a closed state, the first spine, the second spine, the connecting block and the clamping groove are located in the same plane, so that the spine of the loose-leaf binding ring is flat and can be placed on the desktop more stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of the utility model when it is closed.

[0014] Figure 2 It is a front explosion schematic diagram of the utility model.

[0015] Figure 3 It is an exploded view of the back of the utility model.

[0016] Figure 4 for Figure 3 A partial enlarged schematic diagram of area A in the middle.

[0017] Figure 5 for Figure 3 A partial enlarged schematic diagram of area B in the middle.

[0018] Figure 6 It is an exploded schematic diagram of an embodiment with multiple connection blocks.

[0019] Component symbol description:

[0020] The first hinge 1; the first ridge 11; the connecting block 111; the rotating connecting member 1111; the first half ring component 12; the second hinge 2; the second ridge 21; the engaging groove 211; the engaging hole 2111; and the second half ring component 22. DETAILED DESCRIPTION

[0021] In order to more clearly illustrate the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0022] In the following description, example details are given to provide a deeper understanding of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. It should be understood that the specific embodiments are only used to explain the present invention and are not used to limit the present invention.

[0023] It should be understood that when the terms "comprise" and or "include" are used in this specification, they indicate the existence of the stated features, integers, steps, operations, elements or components, but do not exclude the existence or addition of one or more other features, integers, steps, operations, elements, components or combinations thereof.

[0024] Loose-leaf binding rings are used to bind the loose pages with holes punched into books, and the bound loose pages can be flipped through. Nowadays, there are many styles of loose-leaf binding rings, and people can choose different binding rings according to specific purposes.

[0025] Most of the loose-leaf binding rings on the market now realize the opening and closing of the binding rings by setting a rotating shaft or a hinged spine. The existing technology has the following shortcomings: 1. The protruding spine hinge makes it impossible for the loose-leaf binding ring to be placed stably on the desktop and affects the appearance; 2. For mass production, the installation of independent rotating shafts is difficult to realize automation and the manual installation cost is high; therefore, there is an urgent need for a shaftless loose-leaf binding ring with a flat spine to solve the above problems.

[0026] See also Figure 1-3The utility model provides a shaftless loose-leaf binding ring with a flat spine, comprising a first hinge 1 and a second hinge 2, wherein the first hinge 1 comprises a first spine 11 and a first half-ring component 12, and the second hinge 2 comprises a second spine 21 and a second half-ring component 22, wherein the first spine 11 is provided with a connecting block 111, and the second spine 21 is correspondingly provided with a clamping groove 211, the connecting block 111 and the clamping groove 211 are clearance-matched, and rotating connecting members 1111 are provided at opposite ends of the connecting block 111, and clamping holes 2111 are provided on opposite inner walls of the clamping groove 211, and the rotating connecting member 1111 abuts against the clamping holes 2111 to realize the rotating connection between the first hinge and the second hinge; wherein, when the loose-leaf binding ring is kept in a closed state, the first spine 1 1. The connecting block 111, the clamping groove 211 and the second spine 21 are located on the same plane to achieve a flat spine of the loose-leaf binding ring. In the utility model, the structure of the rotating shaft is omitted, and a connecting piece with a rotating connecting column is provided on the first hinge, and a clamping groove with a clamping hole is provided on the second hinge. During assembly, the connecting piece is clamped into the clamping groove, and the rotating connecting piece cooperates with the clamping hole to achieve a rotating connection between the two hinges, and the rotating connecting piece can be rotated in the clamping hole to realize the opening and closing of the binding ring. This arrangement omits the rotating shaft, reduces the difficulty of assembling the loose-leaf binding ring, and reduces the labor cost of production. In addition, when the loose-leaf binding ring is closed, the spine is flat, so that the device can be stably placed on the desktop, which improves the user experience.

[0027] In the present application, the rotating connecting member can be a cylindrical or other strip-shaped structure. In this embodiment, please refer to Figure 4-5 The rotating connection piece is hemispherical, and the card hole is a hemispherical hole that matches the shape of the hemispherical rotating connection piece. The hemispherical rotating connection piece is interference fit with the hemispherical hole. In the present application, the first hinge and the second hinge are made of a material with a certain elastic plasticity. After the first hinge is bent and the rotating connection piece is inserted into the card hole, the first hinge restores its shape, so that the rotating connection piece cannot be removed after being inserted, and the rotating shaft rotates in the card hole. The hemispherical rotating connection piece is easier to insert into the card hole than cylindrical and other strip structures, thereby facilitating assembly. Secondly, the contact surface with the card hole is a spherical surface with a small friction coefficient, which can make the rotating connection piece rotate more smoothly in the card hole, thereby making the opening and closing of the loose-leaf binding ring more convenient.

[0028] In this embodiment, the connecting block is a hollow structure to increase the flexibility of the loose-leaf binding ring. If the loose-leaf binding ring is too rigid, it is easy to break. The connecting block is set to be hollow, so the connecting block is easier to deform, and the rotating connecting parts thereon are also easy to displace accordingly, which can make the assembly of the loose-leaf binding ring more convenient.

[0029] See also Figure 6In another embodiment of the present application, at least one connecting block is provided on the first spine, and the number of snap-in grooves matches the number of connecting blocks. Multiple connecting blocks can be arranged according to the length of the loose-leaf binding rings. Subsequently, a corresponding number of snap-in grooves are arranged on the second hinge, so that loose-leaf binding rings of different lengths have a certain assembly stability and structural tightness.

[0030] See also Figure 1 In this embodiment, the ends of the first half ring component 12 and the second half ring component 22 are provided with wedge-shaped teeth that match each other. When the loose-leaf binding ring is closed, the wedge-shaped teeth of the first half ring component and the second half ring component fit together. The ends of a certain group of the first half ring component and the second half ring component are provided with inverted hook-shaped locking teeth. When the loose-leaf binding ring is closed, the inverted hook-shaped locking teeth hook each other to maintain the stability of the closed state.

[0031] The technical effects of the present invention are:

[0032] 1) The connection block and the card slot are set to eliminate the rotating shaft, reduce the assembly difficulty and reduce the production cost.

[0033] 2) When the loose-leaf binding ring is closed, the first spine, the connecting block, the clamping groove and the second spine are located on the same plane, so that the spine is flat and the device can be placed stably on the desktop.

[0034] 3) The connecting block is a hollow structure, which increases the flexibility of the loose-leaf binding ring and makes the assembly operation easier.

[0035] The above disclosures are only several specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A shaftless loose-leaf binding ring with a flat spine, comprising a first hinge and a second hinge, wherein the first hinge comprises a first spine and a plurality of first half-ring components, and the second hinge comprises a second spine and a plurality of second half-ring components, characterized in that: The first ridge is provided with a connecting block, and the second ridge is correspondingly provided with a clamping groove, the connecting block and the clamping groove are clearance-matched, the two opposite ends of the connecting block are provided with rotating connecting pieces, and the two opposite inner walls of the clamping groove are provided with clamping holes, and the rotating connecting piece abuts against the clamping holes to realize the rotating connection between the first hinge and the second hinge; Wherein, when the loose-leaf binding ring is kept in a closed state, the first spine, the connecting block, the clamping groove and the second spine are located on the same plane, so as to achieve the flatness of the spine of the loose-leaf binding ring.

2. The shaftless loose-leaf binding ring with a flat spine according to claim 1, characterized in that: At least one connecting block is disposed on the first ridge, and the number of the clamping grooves matches the number of the connecting blocks.

3. The shaftless loose-leaf binding ring with a flat spine according to claim 1, characterized in that: The rotating connecting piece is hemispherical, the clamping hole is a hemispherical hole matching the shape of the hemispherical rotating connecting piece, and the hemispherical rotating connecting piece is interference fit with the hemispherical hole.

4. The shaftless loose-leaf binding ring with a flat spine according to claim 1, characterized in that: The connecting block is a hollow structure to increase the flexibility of the loose-leaf binding ring.

5. The shaftless loose-leaf binding ring with a flat spine according to claim 1, characterized in that: The ends of the first half ring component and the second half ring component are provided with wedge-shaped teeth which match each other.

6. The shaftless loose-leaf binding ring with a flat spine according to claim 1, characterized in that: The ends of a group of the first half ring component and the second half ring component of the loose-leaf binding ring are provided with mutually matching undercut locking teeth.

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